Improvement in combined ruler and letter-scales



c+.l n. wYcKoFF. A COMBINED RULER AND LETTER SCALE.

Nov. 193,744. Patented July 31,1877..

NA PEYERS, PHOTO-L II-'HOGRAFHEE WSHlNGTON. Dv C.

UNITED STATES GEORGE D. WYOKOFF, OF INDIANAPOLIS, INDIANA, ASSIGNOR TOJOHN A. GREEN, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN COMBINED RULER AND LETTER-SCALES.

Specification forming part of Letters Patent No. {93,744, dated July 31.1877 applicati@ filed January 2, 1877.

To all whom lit may concern:

Be it known that I, GEORGE D. WYcKoEE, of Indianapolis, in the county ofMarion and State of Indiana, have invented a Combined Ruler andLetter-Scale, of which the following is a specification:

In Letters Patent No. 181,236, granted to me, a rule and protraetocombined is set forth.

My present invention relates to an improvement in Which the rule isadapted to use as a letter-scale.

In the drawing, Figure 1 is an elevation of the rule in use as a scale.Fig. 2 is a plan of the same, partially in section.

The rule ais preferably made of sheet metal, with divisions into inchesand fractions thereof, and with the protractor portionb substantially asin the aforesaid patent.

There is also a hollow cylinder, d, at the edge of the rule, as in saidpatent; but the plugs e and 'i at the ends contain, one a'ulcrum-Wire`,f, and the other a swinging' spring letterclip, g. Theseplugs, when inserted, form ornamental ends to the cylinder d; but whenthe plug eis reversed the letter-clip PATENT OFFICE.

hangs from the end, and a letter can be held thereby.

The plug i, with its fulcrumwiref, is used to suspend the rule and allowof its use as a letter'scale. When theletter has been clasped by thespringclip the fulcrum-pin is applied through one of the holes in therule at the proper place to allow the rule to hang level, and the marksupon the rule at these points indicate ounces and fractions; hence theWeight of the letter is easily ascertained. When not required as ascale, the plugs are inserted at the ends ofthe cylinder d, as seen inFig. 2.

I claim as my invention- The ruler made with a hollow cylinder at oneedge, in combination with a reversible plug and letter-holder, a plugand t'ulcrumpin, and perforations in the ruler, forming the divisions ofthe letterscale, substantiallyvv as set forth;

Signed by me this 11th day of December, 1876.

GEO. D. WYCKOFF.

Witnesses:

GEO. T. PINGKNEY, CEAS. H. SMITH.

